Table 3 Correlations between SMG variables, EMG variables and torque of TA for each isometric foot dorsiflexion intensity

TH 100

1

TH 75

0.805†

1

TH 50

0.886†

0.886†

1

TH25

0.955†

0.882†

0.903†

1

PA 100

0.687†

0.770†

0.743†

0.804†

1

PA 75

0.560†

0.693†

0.593†

0.649†

0.712†

1

PA 50

0.754†

0.779†

0.812†

0.816†

0.827†

0.839†

1

PA 25

0.767†

0.744†

0.718†

0.849†

0.895†

0.750†

0.895†

1

EMG_MP 100

0.650†

0.871†

0.776†

0.725†

0.634†

0.625†

0.765†

0.643†

1

EMG_MP 75

0.131

0.299

0.204

0.164

0.296

0.402*

0.353

0.326

0.421*

1

EMG_MP 50

0.678†

0.698†

0.624†

0.687†

0.515†

0.545†

0.588†

0.615†

0.748†

0.552†

1

EMG_MP 25

0.556†

0.483*

0.439*

0.591†

0.584†

0.617†

0.577†

0.659†

0.446*

0.583†

0.693†

1

EMG_AUC 100

0.586†

0.495†

0.548†

0.556†

0.426*

0.488†

0.590†

0.519†

0.593†

0.500†

0.767†

0.697†

1

EMG_AUC 75

0.084

0.224

0.127

0.064

0.185

0.321

0.280

0.231

0.377

0.834†

0.505†

0.548†

0.579†

1

EMG_AUC 50

0.544†

0.447*

0.379

0.525†

0.379

0.391*

0.379

0.464*

0.448*

0.416*

0.762†

0.628†

0.634†

0.410*

1

EMG_AUC 25

0.500†

0.358

0.315

0.436*

0.398*

0.429*

0.441*

0.569†

0.326

0.571†

0.651†

0.760†

0.682†

0.686†

0.674†

1

Torque 100

0.451*

0.500†

0.381

0.495†

0.398*

0.596†

0.587†

0.570†

0.468*

0.300

0.469*

0.608†

0.501†

0.392*

0.460*

0.544†

1

Torque 75

0.188

0.282

0.175

0.217

0.268

0.441*

0.393*

0.388*

0.361

0.771†

0.481*

0.490†

0.424*

0.705†

0.407*

0.627†

0.474*

1

Torque 50

0.426*

0.476*

0.353

0.407*

0.288

0.354

0.372

0.423*

0.467*

0.456*

0.689†

0.456*

0.532†

0.508†

0.638†

0.679†

0.701†

0.648†

1

Torque 25

0.536†

0.490†

0.368

0.562†

0.479*

0.491†

0.483*

0.582†

0.408*

0.505†

0.657†

0.779†

0.589†

0.530†

0.618†

0.792†

0.555†

0.588†

0.596†

1